地铁站风亭排风污染对下风向周边区域影响浅析  

A Preliminary Analysis of the Impact of Ventilation Shaft Exhaust Pollution in Subway Station on the Downwind Surrounding Area

作　　者：巩煋 路斌 戚宗元 王晖 张国强[1] 王靖然 关军 GONG Xing;LU Bin;QI Zongyuan;WANG Hui;ZHANG Guoqiang;WANG Jingran;GUAN Jun(School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Nanjing Metro Operation Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]南京理工大学能源与动力工程学院,江苏南京210094 [2]南京地铁运营有限责任公司,江苏南京210000

出　　处：《绿色建筑》2025年第1期3-6,13,共5页Green Building

基　　金：国家自然科学基金面上项目“高人员密度室内环境挥发性有机化合物的关键特性和源解析研究”(52178077)。

摘　　要：为研究地铁站排风污染对下风向区域的影响规律,以华东地区某典型地铁站为例进行实地测试,定量分析地铁站风亭排风中污染物的浓度水平、时空分布特征、下风向的影响距离及其影响因素。研究发现,地铁排风风速为(2.57±0.67)m/s、排风温度为(21.10±0.09)℃、排风湿度为(71.4±4.3)%;PM_(2.5)和总挥发性有机化合物(TVOC)排风污染浓度水平分别为(32.37±7.00)μg/m^(3)和(497±27)μg/m^(3),对下风向区域的影响范围大约在10 m。此外,排风中的颗粒物污染浓度水平主要与环境湿度和室外颗粒物污染浓度水平相关,而TVOC污染浓度水平则主要受环境湿度的影响。以期为深入了解地铁站污染排放特征及其控制策略提供科学参考。To investigate the impact patterns of subway station exhaust pollution on downwind areas,a typical subway station in East China was selected for field testing,conducting quantitative analysis on the concentration levels of pollutants in the subway station's ventilation shaft exhaust,their spatiotemporal distribution characteristics,the influence distance downwind,and the influencing factors.The study found that the subway exhaust parameters were(2.57±0.67)m/s for wind speed,(21.10±0.09)℃for temperature,and(71.4±4.3)%for humidity.The pollution concentration levels were(32.37±7.00)μg/m^(3)for PM_(2.5) and(497±27)μg/m^(3)for TVOC,with the influence range on the downwind area being approximately 10 meters.Additionally,the particulate pollution concentration in the exhaust was mainly related to environmental humidity and outdoor particulate pollution concentration levels,while the TVOC pollution concentration was primarily affected by environmental humidity.This study provides scientific reference for a deeper understanding of the pollution emission characteristics of subway stations and their control strategies.

关 键 词：地铁站 空气污染 污染排放 实测分析 影响因素 

分 类 号：X820.3[环境科学与工程—环境工程]